Luigi Calabresi

Luigi Calabresi (14 November 1937-17 May 1972) was an Italian state police official in Milan, Italy. He was in charge of investigating the 1969 Piazza Fontana bombing, and, during the investigation, the anarchist Giuseppe Pinelli mysteriously fell out of a window and died. Calabresi was assassinated in 1972 due to the leftist belief that he had Pinelli murdered.

Biography
Luigi Calabresi was born in Rome, Italy in 1937, and he initially sought to be an attorney, but eventually decided to become a policeman. He was sent to Milan to investigate anarchist groups, and he was in charge of the investigation that followed the 1969 Piazza Fontana bombing. During the investigation, anarchist leader Giuseppe Pinelli fell out of a window during an interrogation, and Calabresi, who was outside of the room, did not know how he had died; the initial explanations were that he either jumped or fell out of the window due to the room being smoke-filled, but many suspected that he had been murdered. Calabresi was acquitted of any charges related to Pinelli's death, but the far-left Lotta Continua suspected that Calabresi was responsible.

On 17 May 1972, as he was on his way to work, Calabresi was shot in a Milan street, and Lotta Continua was held responsible for Calabresi's murder. His death set off a wave of political violence during the "Years of Lead", and Calabresi was posthumously honored by both the Italian government and Pope Paul VI.